Projects

Microservices ecosystem (Spring Boot, Spring Cloud, Eureka) for multi-school management: OCR grade extraction (Tesseract.js), an automated scoring and report-card engine, and real-time decision-making dashboards.

• Microservices architecture split into 5 independent services (Next.js frontend, Spring Cloud Gateway API gateway, 2 Spring Boot business services, Eureka service discovery), deployed across 2 servers with load balancing, circuit breakers, and rate limiting.
• Multi-tenant isolation between schools sharing the same infrastructure, via context propagation (JWT + Feign) across inter-service calls.
• Diagnosed and fixed a production incident: grade loading for a 170-student class dropped from 30+ seconds (timing out) to under 3 seconds, by eliminating N+1 queries and introducing targeted caching.
• Under a real load test, identified a Redis connection pool exhaustion causing 503 errors; the fix was verified in production, cutting the failure rate from 75% to under 10% under burst traffic.
• Asynchronous processing (Spring @Async) so a single grade edit no longer blocks the HTTP response while report cards regenerate for an entire class.
• Full observability across all services (Prometheus, Grafana, Loki) for centralized metrics and logs.
• Idempotent database migrations (Flyway), enabling zero-downtime deployments across multiple production replicas.

Modernization and deployment of a logistics and commercial management ERP on GCP via Docker. Asynchronous pipelines (Cloud Functions) automating delivery tracking and bidirectional stock synchronization. Overhaul of data access layers and Redis caching (-40% latency). Angular dashboards for business steering.

• Cut cloud infrastructure costs from €1,000/month to under €200/month (-80%) by redesigning the architecture and hosting model.
• Decoupled the Laravel monolith: migrated the frontend to Angular consuming a Laravel REST API, reducing perceived latency and separating concerns.
• Migrated hosting from Compute Engine (fixed-cost VM) to Cloud Run (Docker containers, pay-as-you-go billing).
• Automated scheduled start/stop (Node.js Cloud Functions) for services remaining on VMs during off-peak hours (10pm–6am).
• Switched API calls to lazy loading triggered by user action instead of loading on every view, cutting network egress costs.
• Set up an automated Firestore purge routine (Cloud Functions) to prevent NoSQL storage costs from ballooning.
• Standardized CI/CD pipeline: Docker containerization, image management via Artifact Registry, automated deployment to Cloud Run.

Design and modeling of the Congrès ADNA collaborative platform, with secured user data flows (JWT, role management) on a microservices architecture.

• Smooth management of 500+ participants on the platform, with no service interruption.

Development of Africa Unity, a collaborative platform for managing professional events. Custom CMS with user directory management and permission control.